commits: 91d4d086f4e2783387bd9aece2640bbd1e79c6c3

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sha	message	author_date	committer_date	raw_author	raw_committer	repo	author	committer
91d4d086f4e2783387bd9aece2640bbd1e79c6c3	Combine='by_coords' and concat dim deprecation in open_mfdataset (#5669) * deprecate * test * whats-new * Update doc/whats-new.rst Co-authored-by: Mathias Hauser <mathause@users.noreply.github.com> Co-authored-by: Maximilian Roos <5635139+max-sixty@users.noreply.github.com> Co-authored-by: Mathias Hauser <mathause@users.noreply.github.com>	2021-10-01T18:51:59Z	2021-10-01T18:51:59Z	26a6f89d5f52aa3fe5267933be6139d10dfff2a7	cd792325681cbad9f663f2879d8b69f1edbb678f	13221727	35968931	19864447